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Article Dans Une Revue Journal of Economic Entomology Année : 2000

Secondary transmission of toxic baits in German cockroach (Dictyoptera : Blattellidae)

Résumé

The death rates of three toxic gel baits (fipronil bait, 0.05%; hydramethylnon, bait 2.15%; and abamectin B1 bait. 0.05%) were estimated in Blattella germanica (L.). After ingestion, all three baits killed similar proportions of cockroaches, but they died more rapidly after ingestion of fipronil bait than after ingestion of abamectin B1 bait or of hydramethylnon bait. Laboratory experiments evaluated the impact of secondary transmission of fipronil bait and hydriamethylnon bait. Mortality rates caused by secondary transmission were higher for fipronil bait than for hydramethylnon bait. Under controlled laboratory conditions, secondary transmission occurred mainly through direct contact with, or ingestion of, traces of baits dispersed in the environment by contaminated cockroaches. These traces were either deposited by "trampling" in the environment or on dead contaminated cockroaches. Social interactions and cannibalism played a minor role in secondary transmission of these two baits.
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Dates et versions

hal-01305615 , version 1 (21-04-2016)

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Virginie Durier, Colette Rivault. Secondary transmission of toxic baits in German cockroach (Dictyoptera : Blattellidae). Journal of Economic Entomology, 2000, 93 (2), pp.434--440. ⟨10.1603/0022-0493-93.2.434⟩. ⟨hal-01305615⟩
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